Downgrade Samsung Galaxy J7 SM-J700F

How to downgrade Samsung Galaxy J7 SM-J700F to old android version ( Android 4.4.4 Kitkat, Android 5.0.1, Android 5.0.2 and Android 5.1.1 Lollipop ). Download the firmware from https://samsung-firmware.org/model/SM-J700F/. Download the android version you want to install from the page for your Samsung Galaxy J7 SM-J700F. There are available for some regions/countries. If you could not found your region, you can use other region as long as the firmware version is match with your samsung model number.

Reboot Phone in Download Mode ( Turn Power off the phone, Press and hold Volume Down key and Home key, While pressing these keys press and hold Power key, Release all key when Download Mode / Odin Mode appears )

Connect the phone to PC with USB Cable Data, then Press and release Volume Up key

If you installed the firmware that does not from your region and you get an error message. It means the firmware is not suitable for model number, you can try other region. If the firmware can not be installed to your device, It means the firmware does not support your device. All the impact is its your own responsibility.